| British Heart Foundation | 1 | 0 | 0 | No checked source |
| British Steel | 1 | 0 | 0 | No checked source |
| British Sugar | 1 | 100 | 0 | No checked source |
| Bsb Realisations Limited | 1 | 0 | 0 | No checked source |
| BT Group | 2 | 0 | 0 | No checked source |
| Buckingham Group Contracting Limited | 1 | 0 | 0 | No checked source |
| Bupl Realisations Limited | 1 | 0 | 0 | No checked source |
| Burberry | 1 | 0 | 0 | No checked source |
| Busaba Eathai Limited | 1 | 0 | 0 | No checked source |
| Butlin's | 1 | 0 | 0 | No checked source |
| C Brown Services Limited | 1 | 0 | 0 | No checked source |
| C-plan Telecommunications Limited | 1 | 0 | 0 | No checked source |
| C. Brown & Sons (steel) Limited | 1 | 0 | 0 | No checked source |
| Cabinet Office | 1 | 1,200 | 0 | No checked source |
| Cadence (2026) Number 1 Limited | 1 | 0 | 0 | No checked source |
| Cadence (2026) Number 2 Limited | 1 | 0 | 0 | No checked source |
| Calcivis Limited | 1 | 0 | 0 | No checked source |
| Caldwell Construction Limited | 1 | 0 | 0 | No checked source |
| Cambium Networks, Ltd | 1 | 0 | 0 | No checked source |
| Cambridge University Hospitals NHS Foundation Trust | 1 | 0 | 0 | No checked source |
| Cancer Research UK | 1 | 0 | 0 | No checked source |
| Caparo India Limited | 1 | 0 | 0 | No checked source |
| Capita | 1 | 303 | 0 | No checked source |
| Cardiff Metropolitan University | 1 | 0 | 0 | No checked source |
| Cardiff Rugby Limited | 1 | 0 | 0 | No checked source |
| Cargiant | 1 | 0 | 0 | No checked source |
| Carlsberg Britvic | 1 | 310 | 0 | No checked source |
| Carnival UK | 1 | 0 | 0 | No checked source |
| Cbr05 Limited | 1 | 0 | 0 | No checked source |
| Ceco (Flooring) Limited | 1 | 0 | 0 | No checked source |
| Cedl Realisations Limited | 1 | 0 | 0 | No checked source |
| Cel Sheet Metal Limited | 1 | 0 | 0 | No checked source |
| Cenergist Limited | 1 | 0 | 0 | No checked source |
| Century Capital Partners Limited | 1 | 0 | 0 | No checked source |
| Cepac | 1 | 63 | 0 | No checked source |
| Cereal Partners UK and Ireland | 1 | 0 | 0 | No checked source |
| Cereal Partners United Kingdom and Ireland | 1 | 0 | 0 | No checked source |
| Cgl Realisations 2025 Limited | 1 | 0 | 0 | No checked source |
| Challenge Logistics Limited | 1 | 0 | 0 | No checked source |
| Challenge Recruitment Group Limited | 1 | 0 | 0 | No checked source |
| Challenge-trg Recruitment Limited | 1 | 0 | 0 | No checked source |
| Channel 4 | 1 | 340 | 0 | No checked source |
| Chertsey Hillswood Drive Centre Limited | 1 | 0 | 0 | No checked source |
| Cheshire Constabulary | 1 | 0 | 30 | No checked source |
| Chiaro Technology Limited | 1 | 0 | 0 | No checked source |
| Christies (fochabers) Limited | 1 | 0 | 0 | No checked source |
| Cigna International Health | 1 | 193 | 0 | No checked source |
| Circle Express Limited | 1 | 0 | 0 | No checked source |
| Ck Capital Management Ltd | 1 | 0 | 0 | No checked source |
| Claire's | 2 | 0 | 0 | No checked source |
| Claire's European Services Limited | 1 | 0 | 0 | No checked source |
| Clancy Consulting Ltd | 1 | 0 | 0 | No checked source |
| Cleverchefs Ltd | 1 | 0 | 0 | No checked source |
| Clifford Chance | 1 | 50 | 0 | No checked source |
| Close Brothers | 1 | 0 | 0 | No checked source |
| Cmo Group Limited | 1 | 0 | 0 | No checked source |
| Commercial Estates Group Limited | 1 | 0 | 0 | No checked source |
| Condor Ferries | 1 | 31 | 0 | No checked source |
| Contis Financial Services Limited | 1 | 0 | 0 | No checked source |
| Contract Solutions (grampian) Ltd | 1 | 0 | 0 | No checked source |
| Convergix Automation Solutions | 1 | 30 | 0 | No checked source |
| Corbyn Construction Limited | 1 | 0 | 0 | No checked source |
| Cornish Lithium | 1 | 0 | 0 | No checked source |
| Corporation of St. Lawrence College(the) | 1 | 0 | 0 | No checked source |
| Countesswells Development Limited | 1 | 0 | 0 | No checked source |
| Cove Communities Venture 2 Argyle Opco Limited | 1 | 0 | 0 | No checked source |
| Cove Communities Venture 2 Gwel An Mor Opco Limited | 1 | 0 | 0 | No checked source |
| Cove Communities Venture 2 Medmerry Opco Limited | 1 | 0 | 0 | No checked source |
| Cove Communities Venture 2 Medmerry Propco Limited | 1 | 0 | 0 | No checked source |
| Cove Communities Venture 2 Solway Opco Limited | 1 | 0 | 0 | No checked source |
| Cove Communities Venture 2 Springwood Opco Limited | 1 | 0 | 0 | No checked source |
| Coventry University Group | 1 | 0 | 0 | No checked source |
| Cranswick | 1 | 0 | 0 | No checked source |
| Crazy Bear Group Limited | 1 | 0 | 0 | No checked source |
| Credit Repair Ltd | 1 | 0 | 0 | No checked source |
| Crest Nicholson | 1 | 50 | 0 | No checked source |
| Cscom Realisations 2025 Limited | 1 | 0 | 0 | No checked source |
| Csg Propco Realisations 2025 Limited | 1 | 0 | 0 | No checked source |
| Curo Construction Limited | 1 | 0 | 0 | No checked source |
| Currys | 1 | 80 | 0 | No checked source |
| Cvw Spv Limited | 1 | 0 | 0 | No checked source |
| Dacs Ltd | 1 | 0 | 0 | No checked source |
| David Phillips (ff&e) Limited | 1 | 0 | 0 | No checked source |
| David Phillips Furniture Ltd | 1 | 0 | 0 | No checked source |
| DC London Pie Limited | 1 | 0 | 1,210 | No checked source |
| Debenhams | 1 | 1,200 | 0 | No checked source |
| Denby Potteries Limited | 1 | 0 | 0 | No checked source |
| Denby Retail Limited | 1 | 0 | 0 | No checked source |
| Devonshire Homes Limited | 1 | 0 | 0 | No checked source |
| Diageo | 1 | 0 | 0 | No checked source |
| Directa Plus PLC | 1 | 0 | 0 | No checked source |
| Dogs Trust | 1 | 307 | 0 | No checked source |
| Dovetail Enterprises (1993) Limited | 1 | 0 | 0 | No checked source |
| Dow | 1 | 0 | 220 | No checked source |
| DS Smith | 1 | 0 | 0 | No checked source |
| Dual Seal Glass Ltd. | 1 | 0 | 0 | No checked source |
| Dundee University | 2 | 0 | 0 | No checked source |
| E Realisations 2026 Ltd. | 1 | 0 | 0 | No checked source |
| E-cars Group Limited | 1 | 0 | 0 | No checked source |
| E-cars UK Auto Sales Ltd | 1 | 0 | 0 | No checked source |